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Cutty Sark
Cutty Sark
Open daily 10am-5pm
Last entry 4.15pm
Adult: £18 | Child: £9
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Free
National Maritime Museum
National Maritime Museum
Open daily 10am-5pm
Last entry 4.15pm
Free entry
Booking recommended
Free
Queen's House
Queen's House
Open daily 10am-5pm
Last entry 4.15pm
Free entry
Booking recommended
Royal Observatory
Royal Observatory
Open daily 10am-6pm
Last entry 5pm
Adult: £18 | Child: £9
Members go free
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Family fun
Astronomers Take Over
This brand-new interactive gallery gives curious minds aged 4 to 104 the space to play, learn and explore!
Prince Philip Maritime Collections Centre
Events and festivals
Heritage Open Days
Celebrate England's largest festival of history and culture this September at the Prince Philip Maritime Collections Centre
National Maritime Museum
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Moon Celebration Week
Join us to celebrate our beautiful celestial neighbour with a range of Moon-themed activities for all ages
Stories
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Royal history
What is the Merchant Navy?
Discover the role and history of the commercial shipping fleet – and its connections with Royal Museums Greenwich
Night sky highlights - September 2026
Spot Neptune through a telescope, see the Moon in the Beehive Cluster, and mark the autumnal equinox and equilux.
Making Waves: Dr Dawn Wright
Oceanographer and chief scientist Dr Dawn Wright on diving to the deepest part of the ocean – and why we need to stand up for our blue planet
Collections
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Collections Online
Search our online database and explore our objects, paintings, archives and library collections from home
The Prince Philip Maritime Collections Centre
Come behind the scenes at our state-of-the-art conservation studio
Caird Library
Visit the world's largest maritime library and archive collection at the National Maritime Museum
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From astronomy to maritime history, bring your subjects to life with our school sessions and resources
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Explore our groups, programmes and events developed with local and connected communities
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Gain skills and hands-on experience with a range of creative activities, projects and events
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Item Category
Item Category
Astronomical and navigational instruments
Astronomical and navigational instruments
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Astrolabes and quadrants
Celestial navigation
Charting instruments
Compasses
Course, speed and distance indicators
Electronic navigation
Globes and globe gores
Meteorological instruments
Optical equipment
Sundials
Telescopes
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Type
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Type
Type
Octant with Artificial Horizon
Reflecting Circle
Reflecting Circle box
Reflecting half-circle
Repeating circle
surveying & navigational t&e: circle, reflecting
Materials
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Materials
Materials
brass
glass
inorganic: glass
metal
metal: brass
metal: gold
metal: silver
wood
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Display Location
Display Location
Not on display
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Creator
Creator
Berge, Matthew
Dollond & Aitchison
Heather, William
Hughes, Henry
Jecker
Jecker, Francois Antoine
Luttig, C
Magellan, Jean Hyacinthe de
Pistor & Martin
Pistor & Martins
Ramsden, Jesse
Spencer Browning & Rust
Troughton
Troughton & Simms
Unknown
Places
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Places
Places
Berlin
London
Paris
Unknown
People
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People
People
Henry Hughes & Son Limited
Hughes, Henry (Repairer for re-sale)
Century
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Century
Century
18th
19th
20th
unknown
Date Range
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Date Range
Date From
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1782
1795
1798
1800
1805
1815
1825
1850
1858
1890
1893
Date To
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1792
1805
1808
1810
1815
1825
1835
1850
1868
1900
1903
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Reflecting Circle
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showing 17 objects results
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Object title/name (desc)
Finding reference
Finding reference (desc)
Reflecting Circle
Reflecting half-circle
Reflecting Circle
Reflecting Circle box
250 (Reflecting Circle)
Reflecting Circle
Repeating circle
Borda circle (Repeating circle)
Borda circle (Repeating circle)
Repeating circle
Repeating circle
Reflecting Circle
91 (Reflecting Circle)
146 (Reflecting Circle)
Captn Beatson's Patent Altimeter (Octant with Artificial Horizon)
Borda circle (Repeating circle)
Reflecting Circle
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